CN201810298U - Horizontal well fluid production profile testing device - Google Patents

Abstract

A horizontal well liquid production profile testing device is applied to testing of a liquid production profile of an oil field oil horizontal well. The top of the small four-way joint at the well head is fixedly provided with a testing sealer, the top of the testing sealer is connected with a hanging sealer, and the top of the hanging sealer is connected with a pipe sealer; the top of the pipe sealer is hung with a clamping injection head and a guider; a coiled tubing cable is wound on the coiled tubing drum and is connected with an underground liquid production profile tester; the continuous pipe cable bypasses the guider and is fixed in the clamping type injection head, and the underground liquid production profile testing instrument and the continuous pipe cable pass through the pipe sealer, the suspension sealer and the testing sealer to enter the small four-way of the well mouth and the large four-way of the well mouth and enter the underground oil pipe column. The effect is as follows: the continuous pipe cable and the underground liquid production profile testing instrument can efficiently complete the multi-section liquid production profile testing of the horizontal well. The device has the advantages of less used equipment, convenient construction, short moving, installing and operating time, high taking-up and taking-down operating speed and reduced testing cost.

Description

Horizontal well fluid production profile testing device

technical field

The utility model relates to the technical field of oil well testing in an oil field, in particular to equipment for testing a liquid production profile of a horizontal well, which is equipment for testing the water content of the horizontal section of the horizontal well in the oil field.

Background technique

With the extension of oilfield development time, the number of horizontal wells is increasing day by day. During the production process of horizontal wells, it is necessary to frequently test the segmented fluid production profile to grasp the downhole fluid production in time. Since the test section of the horizontal well is horizontal, it is impossible to use the gravity of the instrument itself to send the instrument into the test section. At present, the testing technology of the fluid production profile in the horizontal section of the horizontal well mainly adopts the crawler method and the method of running with the tubing. The crawler method testing equipment is expensive and costly; during the testing process, if there is any falling object in the well, it will cause jamming and make it impossible to test. The construction cost of running with the tubing is higher, and the tubing needs to carry testing instruments into the well, and the number of testing points is limited. Therefore, the liquid production profile test of horizontal wells has not been well and widely carried out, especially the segmental test of the liquid production profile of mechanically produced horizontal wells is more difficult.

Utility model content

The purpose of this utility model is: to provide a horizontal well fluid production profile test device, so that the downhole fluid production profile test instrument can be transported to the horizontal well test well section, and the horizontal well segmental fluid production profile test of the test operation can be successfully completed, and the construction is convenient , the construction cost is lower.

The technical solution adopted by the utility model is: a horizontal well liquid production profile testing device, which is mainly composed of a coiled tubing drum, a coiled tubing cable, a guide, a clamping injection head, a pipe sealer, a suspension sealer and a test sealer. The wellhead of the horizontal well is fixed with the large cross of the wellhead, and the small cross of the wellhead is fixed on the top of the large cross of the wellhead. A test sealer is fixed to the top of the small cross at the wellhead, a suspension sealer is connected to the top of the test sealer, and a pipe sealer is connected to the top of the suspension sealer; the center line of the pipe sealer, the center line of the suspension sealer and the test seal The center line of the device is on the same straight line; a clamping injection head is suspended on the top of the tube sealer; a guide is fixed on the upper part of the clamping injection head; coiled tubing cables are wound on the coiled tubing drum, coiled tubing The end of the cable is connected with a downhole fluid production profile tester; the coiled tubing cable bypasses the guide and is fixed in the clamping injection head, and the downhole fluid production profile tester and the coiled tubing cable pass through the pipe sealer, suspension sealer and test The sealer enters the small wellhead cross and the wellhead large cross; the downhole fluid production profile testing instrument and coiled tubing cable can enter the downhole tubing string through the wellhead small cross and the wellhead large cross.

Beneficial effects of the utility model: the utility model horizontal well fluid production profile testing device enables the coiled tubing cable and the downhole fluid production profile testing instrument to be transported from the downhole tubing string to the horizontal well testing section, and can efficiently complete the horizontal well special It is a multi-stage liquid production profile test of a mechanically produced horizontal well. Less equipment is used, the construction is convenient, the time for relocation, installation and operation is short, and the operation speed is fast, which can reduce the cost of testing.

Description of drawings

Fig. 1 is a schematic structural diagram of the utility model horizontal well fluid production profile testing device.

In the figure, 1. Coiled tubing drum, 2. Coiled tubing cable, 3. Guide, 4. Clamping injection head, 5. Tube sealer, 6. Hanging sealer, 7. Test sealer, 8. Wellhead small Four links, 9. Wellhead four links, 10. Downhole tubing string.

Detailed ways

Embodiment 1: Taking a horizontal well fluid production profile testing device as an example, the utility model is further described in detail.

See Figure 1. The utility model horizontal well fluid production profile testing device is mainly composed of a coiled tubing drum 1, a coiled tubing cable 2, a guide 3, a clamping injection head 4, a pipe sealer 5, a suspension sealer 6 and a test sealer 7. A wellhead big cross 9 is fixed at the wellhead of the horizontal well, and a wellhead small cross 8 is fixed by a flange at the top of the wellhead big cross 9 . A test sealer 7 is fixed to the top of the small cross 8 at the wellhead. A suspension sealer 6 is connected to the top of the test sealer 7 . A tube sealer 5 is connected to the top of the suspension sealer 6; the centerline of the tube sealer 5, the centerline of the suspension sealer 6 and the centerline of the test sealer 7 are on the same straight line. A clamping injection head 4 is suspended on the top of the tube sealer 5; a guide 3 is fixed on the top of the clamping injection head 4.

A coiled tubing cable 2 is wound on the coiled tubing drum 1, and the end of the coiled tubing cable 2 is connected with a downhole fluid production profile tester; The test instrument and the coiled tubing cable 2 pass through the pipe sealer 5, the suspension sealer 6 and the test sealer 7 and enter the wellhead small cross 8 and the wellhead large cross 9; the downhole liquid production profile testing instrument and the coiled tubing cable 2 can pass through the wellhead The small cross 8 and the wellhead large cross 9 enter the downhole tubing string 10 .

Briefly describe the testing process of the horizontal well fluid production profile testing device. See Figure 1. During the test operation, the coiled tubing cable 2 and the downhole fluid production profile tester are sent into the horizontal well section, and the test work of the horizontal section fluid production profile is completed during the process of lifting the instrument.

1. The coiled tubing cable 2 is wound on the coiled tubing drum 1, and the downhole fluid production profile tester is directly connected to the lower end of the coiled tubing cable 2;

2. The coiled tubing cable 2 bypasses the guide 3 and is fixed in the clamping injection head 4. The downhole liquid production profile testing instrument and the coiled tubing cable 2 pass through the pipe sealer 5, suspension sealer 6 and test sealer 7 and enter the wellhead The small cross 8 and the wellhead large cross 9; then, enter the downhole tubing string 10 through the wellhead small cross 8 and the wellhead large cross 9; rotate the coiled tubing drum 1 so that the coiled tubing cable 2 and the downhole fluid production profile testing instrument Move down.

3. The downhole fluid production profile testing instrument is lowered into the horizontal well, and the downhole fluid production profile testing instrument is sent to the test target interval by using the clamping force of the clamping injection head 4 at the wellhead and the rigidity of the coiled tubing to overcome the positive pressure and frictional resistance in the well . Measurements of well temperature and magnetic positioning signals are carried out during the run-in process.

4. Under the condition of ensuring that the downhole fluid production profile testing instrument is connected to the surface mechanically and electrically, rotate the coiled tubing drum 1 to control the movement of the downhole fluid production profile testing instrument in the horizontal section, and perform fluid production profile testing at fixed points according to the design plan.

Claims (1)

1. A horizontal well fluid production profile testing device, mainly composed of a coiled tubing drum (1), a coiled tubing cable (2), a guide (3), a clamping injection head (4), a pipe sealer (5), Suspension sealer (6) and test sealer (7) are made up of, and the wellhead of horizontal well is fixed with wellhead big cross (9), and wellhead small cross (8) is fixed on the top of wellhead big cross (9), It is characterized in that: a test sealer (7) is fixed on the top of the small cross (8) at the wellhead, a suspension sealer (6) is connected to the top of the test sealer (7), and a suspension sealer (6) is connected to the top of the suspension sealer (6). There is a pipe sealer (5); the centerline of the pipe sealer (5), the centerline of the suspension sealer (6) and the centerline of the test sealer (7) are on the same straight line; on the top of the pipe sealer (5) A clamping injection head (4) is suspended; a guide (3) is fixed on the upper part of the clamping injection head (4); a coiled tubing cable (2) is wound on the coiled tubing drum (1), and the coiled tubing cable The end of (2) is connected with a downhole fluid production profile tester; the coiled tubing cable (2) bypasses the guide (3) and is fixed in the clamping injection head (4), and the downhole fluid production profile tester and the coiled tubing cable (2) Pass through the pipe sealer (5), the suspension sealer (6) and the test sealer (7) into the small wellhead cross (8) and the wellhead large crosspiece (9).

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