CN202596684U - Testing process pipe column for casing pipe well completion horizontal well multistage subsection production and water detection - Google Patents

Testing process pipe column for casing pipe well completion horizontal well multistage subsection production and water detection Download PDF

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Publication number
CN202596684U
CN202596684U CN 201220271681 CN201220271681U CN202596684U CN 202596684 U CN202596684 U CN 202596684U CN 201220271681 CN201220271681 CN 201220271681 CN 201220271681 U CN201220271681 U CN 201220271681U CN 202596684 U CN202596684 U CN 202596684U
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CN
China
Prior art keywords
horizontal well
water detection
production
packer
tubing string
Prior art date
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CN 201220271681
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Chinese (zh)
Inventor
王百
吕亿明
甘庆明
牛彩云
赵春
赵晓伟
李大建
朱洪征
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中国石油天然气股份有限公司
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Priority to CN 201220271681 priority Critical patent/CN202596684U/en
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Publication of CN202596684U publication Critical patent/CN202596684U/en

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Abstract

The utility model provides a testing process pipe column for casing pipe well completion horizontal well multistage subsection production and water detection. The testing process pipe column comprises multi-stage intelligent switchgears arranged sequentially. A safety connector and a packer are respectively and sequentially connected between two adjacent intelligent switchgears through oil pipes, and the packers are Y341 or Y441 packers. A conical plug is connected with a free end of a first-level intelligent switchgear through the oil pipe. The testing process pipe column is high in strength of pressure-bearing difference, good in working reliability and suitable for integration subsection production and water detection operation of a multi-production-section horizontal well.

Description

Product, water detection test technology tubing string are asked in the multistage segmentation of a kind of cased hole completion horizontal well

Technical field

The utility model relates to a kind of process pipe string in oil recovery technique field, oil field, particularly, is that product, water detection test technology tubing string are asked in the multistage segmentation of a kind of cased hole completion horizontal well.

Background technology

In oilfield exploitation, in order to improve reservoir development degree, recovery ratio and well yield, reduce cost of winning, the horizontal wells technology becomes more and more important at present.Yet; Because horizontal well self well track, flooding pattern is complicated and changeable, and each oil reservoir lithology, rerum natura are different with properties of fluid in bearing stratum, cause the difference of each interval of horizontal well at aspects such as water absorbing capacity, water-front advance velocity, production fluid situations; Cause the indivedual interval water breakthroughs of horizontal well early; And water bearing bed position and direction are indeterminate, and each layer production capacity, pressure condition are unclear, have a strong impact on the horizontal well development effect.In order to carry out mining operations to horizontal well smoothly, will carry out the water detection operation to horizontal well, with the production capacity of grasping each pay interval, moisture, pressure, temperature regime, situation such as clear and definite main force payzone, water bearing bed position and direction.

At present, industry is in horizontal well water detection operation, and the water detection test string that is adopted adopts the cup packer sealed clamping cleat to open each pay interval usually, and utilizes the gap bridge oil extraction pump to be connected on the test string and in the down-hole pay interval is carried out the extraction operation.Yet because cup packer is self-packing packer, pressure-bearing difference low (less than 10MPa) and receive the restriction from sealed packer and pipe friction resistance can only realize that 3 grade of 4 segmentation water detection of one-trip string tests; For the horizontal well of each interval pressure reduction greater than 10MPa, and the horizontal well interval then can't be used during greater than 4 sections; In addition,,, make pump barrel be subject to draw, influence the pump operate as normal because pump connects tubing string down for the gap bridge oil extraction pump.

Because the defective that above-mentioned known technology exists, the design people develops the multistage segmentation of a kind of cased hole completion horizontal well of the utility model and asks product, water detection test technology tubing string according to the production design experiences of being engaged in this area and association area for many years.

The utility model content

The purpose of the utility model provides the multistage segmentation of a kind of cased hole completion horizontal well and asks product, water detection test technology tubing string, and its pressure-bearing difference intensity is high, and functional reliability is good, and product, water detection test jobs are asked in the integrated segmentation that is adapted to many pay intervals horizontal well.

For this reason; The utility model proposes the multistage segmentation of a kind of cased hole completion horizontal well and asks product, water detection test technology tubing string; Include the multistage intelligent derailing switch that sets gradually; Between each two adjacent said intelligent switch device, be provided with a safety joint and a packer successively through oil pipe respectively, wherein, said packer is Y341 or Y441 type packer; Wherein, on the free end of the said intelligent switch device of the first order, be connected with a taper plug through oil pipe.

Product, water detection test technology tubing string are asked in the multistage segmentation of aforesaid cased hole completion horizontal well, wherein, in the end further are provided with one on the free end of the said intelligent switch device of one-level and connect oil pipe.

Product, water detection test technology tubing string are asked in the multistage segmentation of aforesaid cased hole completion horizontal well; Wherein, Said test technology tubing string further includes a rod-type pumping unit, and an end of said rod-type pumping unit is provided with a sucker rod, and said rod-type pumping unit can be placed in the said connection oil pipe.

Product, water detection test technology tubing string are asked in the multistage segmentation of a kind of cased hole completion horizontal well of the utility model, adopt Y341 or Y441 type packer, and pressure-bearing difference performance is up to 25MPa; Can better satisfy the segmentation water detection of water under high pressure horizontal well; It can realize being lowered to the horizontal well of one-trip string to multi-section multi-layer through each interval of mode sealed clamping cleat boiling water horizontal well of multistage combination, especially tests more than the water detection of 4 sections pay interval horizontal wells; Test zone is unrestricted, and the water detection testing efficiency is high; In addition, compare with existing gap bridge oil extraction pump, the utility model adopts the rod-type pumping unit functional reliability high, has improved the accuracy and the reliability of water detection test effectively.

Description of drawings

Fig. 1 asks the structural representation of product, water detection test technology tubing string for the multistage segmentation of cased hole completion horizontal well of the utility model.

The critical element label declaration:

2 safety joints of 1 intelligent switch device

3 packers, 4 oil pipes

5 taper plugs 6 connect oil pipe

7 rod-type pumping units, 8 sucker rods

9 horizontal well A pay intervals

The specific embodiment

Understand for technical characterictic, purpose and effect to the utility model have more clearly, contrast the specific embodiment of description of drawings the utility model at present, wherein, identical parts adopt identical label.

Fig. 1 asks the structural representation of product, water detection test technology tubing string for the multistage segmentation of cased hole completion horizontal well of the utility model.

Referring to Fig. 1, product, water detection test technology tubing string are asked in the multistage segmentation of cased hole completion horizontal well that the utility model proposes, and include the multistage intelligent derailing switch 1 that sets gradually; Between each two adjacent said intelligent switch device 1, be provided with a safety joint 2 and a packer 3 successively through oil pipe 4 respectively, i.e. an end of safety joint 2 is connected in one of them of two adjacent intelligent switch devices 1 through oil pipe 4, and its other end then is connected in an end of packer 3 through oil pipe 4; The other end of packer 3 then is connected in the two adjacent intelligent switch devices 1 another through oil pipe 4; Wherein, this packer is preferably Y341 or Y441 type packer, compares with existing cup packer; This Y341 or Y441 type packer pressure-bearing difference performance are up to 25MPa; Can satisfy the segmentation water detection of water under high pressure horizontal well, it can realize being lowered to the water detection test of one-trip string to more each intervals through multistage each interval of combination sealing card boiling water horizontal well; Test zone is unrestricted, and the water detection testing efficiency is high;

Wherein, the free end (promptly with the relative other end of an end that is connected with safety joint and packer) at the said intelligent switch device 1 of the first order is connected with a taper plug 5 through oil pipe 4.

Further, in the end further be provided with a connection oil pipe 6 on the free end of the said intelligent switch device 1 of one-level.

Wherein, said test technology tubing string further includes a rod-type pumping unit 7, and an end of said rod-type pumping unit 7 is provided with a sucker rod 8, and said rod-type pumping unit 7 can be placed in the said connection oil pipe 6.In the course of the work, this rod-type pumping unit is connected with ground installation through sucker rod, can continue to carry out the water detection operation to pay interval.

As shown in the figure; Product, water detection test technology tubing string are asked in the multistage segmentation of cased hole completion horizontal well that the utility model proposes; Its operating principle is: according to the quantity of horizontal well pay interval (among the figure be that example describe with 6 sections pay intervals); Select the intelligent switch device 1 of corresponding progression, on ground with the time (such as: day) be that unit preestablishes the acquisition time that each intelligent switch device 1 opens or closes, making in the same period only has an intelligent switch device 1 to be in open mode; Its operating principle is a prior art, does not give unnecessary details at this; With intelligent switch device 1, safety joint 2, packer 3, oil pipe 4, taper plug 5 and connection oil pipe 6,, form the process pipe string of the utility model through by aforesaid annexation; With the precalculated position of this process pipe string in the horizontal well 9, each packer correspondence is placed between each adjacent production interval A, suppress to this process pipe string from connecting oil pipe with cement high pressure car on ground; Make each packer setting; So that each adjacent production interval sealed clamping cleat is opened, form separately independently production unit, last; Rod-type pumping unit 7 down to the certain depth place that connects in the oil pipe 6, and is connected with ground installation through sucker rod 8;

In the water detection operation, the individual layer production one by one under the timing controlled of each intelligent switch device of each interval of horizontal well, promptly through each intelligent switch device in the down-hole successively time opening with close; And the continuous production of rod-type pumping unit; Can produce the metering on ground, sample examination analysis at last to the independent of each interval of multistage horizontal well to realize one-trip string to each pay interval independently working; Confirm the fluid properties of each pay interval, obtain data such as each section production fluid amount, moisture, pressure and temperature respectively.

It is pointed out that in practical implementation, for above-mentioned safety joint; Also can be according to the working condition of concrete horizontal well; Only be arranged between the part intelligent switch device, such as two, three at interval ... Intelligent switch device etc. quantity is provided with a safety joint, all is provided with between the adjacent in twos intelligent switch device and not be used in; With further reduction job costs, increase work efficiency.

Product, water detection test technology tubing string are asked in the multistage segmentation of a kind of cased hole completion horizontal well of the utility model, adopt Y341 or Y441 type packer, and pressure-bearing difference performance is up to 25MPa; Can satisfy the segmentation water detection of water under high pressure horizontal well; It can realize being lowered to the horizontal well of one-trip string to a plurality of pay intervals through each interval of mode sealed clamping cleat boiling water horizontal well of multistage combination, especially tests more than the water detection of 4 sections pay interval horizontal wells; Test zone is unrestricted, and the water detection testing efficiency is high; In addition, compare with existing gap bridge oil extraction pump, the utility model adopts the rod-type pumping unit functional reliability high, has improved the accuracy and the reliability of water detection test effectively.

The above is merely the schematic specific embodiment of the utility model, is not in order to limit the scope of the utility model.Any those skilled in the art, equivalent variations of under the prerequisite of design that does not break away from the utility model and principle, having done and modification all should belong to the scope that the utility model is protected.

Claims (3)

1. product, water detection test technology tubing string are asked in the multistage segmentation of cased hole completion horizontal well; It is characterized in that; Said test technology tubing string includes the multistage intelligent derailing switch that sets gradually; Between each two adjacent said intelligent switch device, be provided with a safety joint and a packer successively through oil pipe respectively, wherein, said packer is Y341 or Y441 type packer;
Wherein, on the free end of the said intelligent switch device of the first order, be connected with a taper plug through oil pipe.
2. product, water detection test technology tubing string are asked in the multistage segmentation of cased hole completion horizontal well as claimed in claim 1, it is characterized in that, in the end further are provided with one on the free end of the said intelligent switch device of one-level and connect oil pipe.
3. product, water detection test technology tubing string are asked in the multistage segmentation of cased hole completion horizontal well as claimed in claim 2; It is characterized in that; Said test technology tubing string further includes a rod-type pumping unit; One end of said rod-type pumping unit is provided with a sucker rod, and said rod-type pumping unit can be placed in the said connection oil pipe.
CN 201220271681 2012-06-08 2012-06-08 Testing process pipe column for casing pipe well completion horizontal well multistage subsection production and water detection CN202596684U (en)

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Application Number Priority Date Filing Date Title
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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103382835A (en) * 2013-07-25 2013-11-06 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 Water exploration and plugging technology by adopting intelligent switches
CN104100254A (en) * 2013-04-03 2014-10-15 中国石油天然气股份有限公司 Sectional synchronous flow rate and water content monitoring and water exploration tubular column of multi-section fracturing horizontal well and working method thereof
CN104100234A (en) * 2013-04-03 2014-10-15 中国石油天然气股份有限公司 Sectional synchronous sampling and water exploration tubular column of multi-section fracturing horizontal well and working method thereof
CN104121013A (en) * 2013-04-25 2014-10-29 中国石油化工股份有限公司 Water exploration device for horizontal well and method for determining water outlet position through water exploration device
CN104234638A (en) * 2013-06-21 2014-12-24 中国石油天然气股份有限公司 Casing completion multiple-segment fracturing horizontal well water exploration tubular pile and water exploration method thereof
CN104234665A (en) * 2013-06-18 2014-12-24 中国石油天然气股份有限公司 Water exploration string capable of monitoring horizontal-section production flow and water content in horizontal and vertical well sections and operation method of water
CN104481527A (en) * 2014-12-05 2015-04-01 中国石油天然气股份有限公司 Method for controlling downhole sectional sampling of horizontal well
CN104500057A (en) * 2014-12-03 2015-04-08 中国石油化工股份有限公司 Testing method of liquid producing profile of horizontal well
CN105178947A (en) * 2015-09-18 2015-12-23 中国石油天然气股份有限公司 Water locating-plugging integration method for horizontal well

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104100254A (en) * 2013-04-03 2014-10-15 中国石油天然气股份有限公司 Sectional synchronous flow rate and water content monitoring and water exploration tubular column of multi-section fracturing horizontal well and working method thereof
CN104100234A (en) * 2013-04-03 2014-10-15 中国石油天然气股份有限公司 Sectional synchronous sampling and water exploration tubular column of multi-section fracturing horizontal well and working method thereof
CN104100234B (en) * 2013-04-03 2016-12-28 中国石油天然气股份有限公司 Multistage pressure break horizontal well in segments samples searching pipe column and method of work thereof simultaneously
CN104121013B (en) * 2013-04-25 2016-08-17 中国石油化工股份有限公司 For the water detection device of horizontal well and use its method determining water exit position
CN104121013A (en) * 2013-04-25 2014-10-29 中国石油化工股份有限公司 Water exploration device for horizontal well and method for determining water outlet position through water exploration device
CN104234665A (en) * 2013-06-18 2014-12-24 中国石油天然气股份有限公司 Water exploration string capable of monitoring horizontal-section production flow and water content in horizontal and vertical well sections and operation method of water
CN104234638A (en) * 2013-06-21 2014-12-24 中国石油天然气股份有限公司 Casing completion multiple-segment fracturing horizontal well water exploration tubular pile and water exploration method thereof
CN103382835A (en) * 2013-07-25 2013-11-06 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 Water exploration and plugging technology by adopting intelligent switches
CN103382835B (en) * 2013-07-25 2016-05-04 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 Intelligent switch is looked for, water-plugging technique
CN104500057A (en) * 2014-12-03 2015-04-08 中国石油化工股份有限公司 Testing method of liquid producing profile of horizontal well
CN104481527A (en) * 2014-12-05 2015-04-01 中国石油天然气股份有限公司 Method for controlling downhole sectional sampling of horizontal well
CN104481527B (en) * 2014-12-05 2017-11-07 中国石油天然气股份有限公司 Sectional sampling control method under a kind of Horizontal Well
CN105178947A (en) * 2015-09-18 2015-12-23 中国石油天然气股份有限公司 Water locating-plugging integration method for horizontal well

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