CN105114061B - A kind of horizontal well fixed tubular column Multi-parameter Combined Tool tests quick searching pipe column and method - Google Patents

A kind of horizontal well fixed tubular column Multi-parameter Combined Tool tests quick searching pipe column and method Download PDF

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CN105114061B
CN105114061B CN201510546255.2A CN201510546255A CN105114061B CN 105114061 B CN105114061 B CN 105114061B CN 201510546255 A CN201510546255 A CN 201510546255A CN 105114061 B CN105114061 B CN 105114061B
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pressure
flowmeter
intelligent switch
test
packer
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CN105114061A (en
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罗有刚
甘庆明
吕亿明
王百
牛彩云
李亚洲
朱洪征
崔文昊
常莉静
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China Petroleum and Natural Gas Co Ltd
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Abstract

The present invention provides a kind of horizontal well fixed tubular column Multi-parameter Combined Tool to test quick searching pipe column and method, mainly by oil pipe mode of movement by test equipment(Flowmeter, pressure gauge etc.)Underground is transported to, test equipment is connected by screw thread with oil pipe, and coordinates packer tripping in horizontal well horizontal segment.According to fractured horizontal well transformation hop count and water breakthrough feature, supporting varying number packer, is different pay intervals by horizontal segment packing, and each pay interval, which corresponds to, places flowmeter, pressure gauge etc..After test string G.I.H, closing well carries out each interval pressure and recovers test, after treating pressure recovery test, opening well and making production, production discharge opeing is carried out using huge discharge swabbing parameter, production is after a certain period of time, act the Parameters variation such as tubing string, playback manometer pressure, temperature, flow, the parameters such as envelope section pressure, flow are respectively blocked by sectionalization test, comprehensive descision water exit interval, well water detection accuracy rate of improving the standard and water detection efficiency.

Description

A kind of horizontal well fixed tubular column Multi-parameter Combined Tool tests quick searching pipe column and method
Technical field
The present invention relates to a kind of horizontal well fixed tubular column Multi-parameter Combined Tool in oil extraction production process to test quick water detection Tubing string and method, belong to oil extraction in oil field technical field.
Background technology
Changqing oilfields belong to typical " three-lows " oil reservoir, and oil well need to supplement energy by pressure break and water filling and develop, with storage The continuous progress of layer fracture technology, horizontal well development become the effective means for improving oil well well yield.But by reservoir The influence of fracture development and waterflooding extraction, exposes aqueous rising soon in the process of development, the development contradiction that water breakthrough well increases, sternly It has impact on the performance of the normal production capacity of horizontal well again, to recover the normal production capacity of oil well, it is premise accurately to find out water exit position, therefore is needed Want water detection and provide reliable basis for later stage water blockoff measure.
At present, the representative means of horizontal well water exploration mainly have liquid producing profile log water detection, mechanical coupling segment production to survey Try water detection, the dragging quick water detection of tubing string pumping.Horizontal well liquid producing profile log water detection technology is started discharge capacity, water by turbine flowmeter The influence of the factors such as horizontal well horizontal segment laminar flow, to low-permeability oil deposit low yield liquid(10m3/d)Horizontal well yield is difficult to, measurement Error is big;In order to effectively solve low production liquid horizontal well water detection technical problem, Changqing oilfields research forms horizontal well in segments production Test water detection technology, by producing paragraph by paragraph, it is aqueous chemical examination determine water exit interval, to horizontal well Liquid output require it is relatively low, but should Technology transforms water detection on horizontal well in application, the water detection cycle is grown in multistage(Average 30-40 days/well), it is impossible to meet produced on-site Need.The dragging quick water detection of tubing string pumping solve thes problems, such as that the water detection cycle is long, but needs the coordinative construction operation of operation team, Add the labor intensity of site operation personnel.
Therefore from the point of view of the investigation and analysis of existing level well water detection technology, exist to the existing water detection technology of low liquid measure horizontal well Certain technical limitation, it is impossible to fully meet produced on-site needs, technology maturity and adaptability need to be further improved.
The content of the invention
In order to overcome in existing method, water detection cycle length, the problem of construction intensity is big, the present invention provides a kind of horizontal well not Dynamic tubing string Multi-parameter Combined Tool tests quick searching pipe column and method, further shortens the water detection cycle, improves water detection efficiency, reduce The labor intensity of site operation personnel, this method is easy for construction, and operation is simple, can effectively reduce testing cost.
The technical solution adopted by the present invention is:
A kind of horizontal well fixed tubular column Multi-parameter Combined Tool tests quick searching pipe column, including oil pipe, the level of the oil pipe Section uniform intervals are provided with the first packer, the second packer, and the second intelligence is provided between the first packer, the second packer Derailing switch, the both ends of the second intelligent switch device are respectively arranged with second pressure meter and second flowmeter;
The other end of first packer is provided with the first intelligent switch device, and the first intelligent switch device both ends are respectively arranged with Flow meters and first pressure meter;
Two one end of second packer are provided with the 3rd intelligent switch device, and the both ends of the 3rd intelligent switch device are respectively arranged with 3rd pressure gauge and the 3rd flowmeter.
The horizontal segment of the oil pipe is connected with silk plug close to the port of first pressure meter.
Lifting equipment is connected with the vertical section of the oil pipe.
Second pressure meter, second flowmeter, first flowmeter, first pressure meter, the 3rd pressure gauge and the 3rd flowmeter with It is screwed connection between oil pipe.
The first pressure meter, second pressure meter and the 3rd pressure are calculated as JDYQ high-precision underground electronic pressure gauges.
The first flowmeter, second flowmeter and the 3rd flowmeter are electromagnetic flowmeter or underground suspended body flowmeter.
A kind of horizontal well fixed tubular column Multi-parameter Combined Tool tests quick groundwater prospecting method, concretely comprises the following steps:
1)Three intelligent switch devices i.e. the first intelligent switch device 3, the second intelligent switch device 7 and the 3rd are preset on ground first 11 on off state sequential of intelligent switch device, and complete self-test operations on ground, it is ensured that three intelligent switch devices can normally play open and close Close;
2)By test string G.I.H, treat the first packer 5 and the second packer 9 times to precalculated position set by Each interval card is opened, and closing well carries out pressure recovery test 5 days after completion, tests each card envelope section pressure recovery situation;
3)After pressure recovery test, huge discharge discharge opeing, continuous production 5 days, and on ground are carried out by lifting equipment 14 Face metering production liquid and aqueous situation;
4)Test string is played out after being completed, each card envelope section flow and pressure value are played back, according to flow and pressure change Situation judges water exit interval, each card envelope section flow of contrast and pressure, and wherein flow and pressure value changes greatly compared with other card envelope sections For main water exit interval.
Beneficial effects of the present invention are:
Each interval pressure is tested by closing well to recover and test each interval flow and pressure changing after driving a well to integrate Judge regimen condition, implementing water blockoff for the later stage provides foundation.Design and installation intelligent switch device in searching pipe column, in lower tubular column process In, intelligent switch device is opened, and oil jacket annular space is connected with oil pipe, it is ensured that construction safety;Intelligently opened during test pressure is recovered Close device to close, ensure that the pressure recovery value of test is effective;In flow rate test, intelligent switch device open, for each interval provide into Liquid passage, while flowmeter institute measurement of discharge is each laminated flow value adopted, the yield that diminishing method need to be used to calculate each section respectively; During lift pipe string, intelligent switch device is kept open, and reduces construction safety risk.
After the quick water detection technique of fixed tubular column multi-parameters test and method, it can effectively shorten the water detection cycle, raising is looked for Water efficiency, judges main inflow direction from pressure and changes in flow rate to analyze, in addition, the construction technology is convenient, operation is simple, energy Effectively reduce testing cost.
Brief description of the drawings
Fig. 1, fixed tubular column Multi-parameter Combined Tool test quick searching pipe column schematic diagram.
In figure, reference numeral:1st, silk plug;2nd, first pressure meter;3rd, the first intelligent switch device;4th, first flowmeter;5th, One packer;6th, second pressure meter;7th, the second intelligent switch device;8th, second flowmeter;9th, the second packer;10th, the 3rd pressure Meter;11st, the 3rd intelligent switch device;12nd, the 3rd flowmeter;13rd, oil pipe;14th, lifting equipment.
Embodiment
Embodiment 1:
In order to overcome in existing method, water detection cycle length, the problem of construction intensity is big, the present invention provides a kind of horizontal well not Dynamic tubing string Multi-parameter Combined Tool tests quick searching pipe column and method, further shortens the water detection cycle, improves water detection efficiency, reduce The labor intensity of site operation personnel, this method is easy for construction, and operation is simple, can effectively reduce testing cost.
As shown in Figure 1, a kind of horizontal well fixed tubular column Multi-parameter Combined Tool tests quick searching pipe column, including oil pipe 13, institute The horizontal segment uniform intervals for stating oil pipe 13 are provided with the first packer 5, the second packer 9, the first packer 5, the second packer 9 Between be provided with the second intelligent switch device 7, the both ends of the second intelligent switch device 7 are respectively arranged with second pressure meter 6 and second Gauge 8;
The other end of first packer 5 is provided with the first intelligent switch device 3, and 3 both ends of the first intelligent switch device are set respectively There are first flowmeter 4 and first pressure meter 2;
Two one end of second packer 9 are provided with the 3rd intelligent switch device 11, the both ends difference of the 3rd intelligent switch device 11 It is provided with the 3rd pressure gauge 10 and the 3rd flowmeter 12.
For this example by taking 3 sections of horizontal production wells flatly as an example, carrying out horizontal well fixed tubular column Multi-parameter Combined Tool tests quick water detection Tubing string sequentially consist of silk plug 1, first pressure meter 2, the first intelligent switch device 3, first flowmeter 4, the first packer 5, Second pressure meter 6, the second intelligent switch device 7, second flowmeter 8, the second packer 9, the 3rd pressure gauge 10, the 3rd intelligent switch Device 11, the 3rd flowmeter 12, oil pipe 13, lifting equipment 14 etc..
During lower tubular column, three intelligent switch devices are opened, and oil jacket annular space is connected with oil pipe, it is ensured that construction safety; Intelligent switch device is closed during test pressure is recovered, and ensures that the pressure recovery value of test is effective;During lift pipe string, intelligence Derailing switch is kept open, and reduces construction safety risk.
Each intelligent switch device is opened, and provides feed pathway for each interval, while each flowmeter institute measurement of discharge is each layer The flow value adopted is closed, the yield that diminishing method need to be used to calculate each section respectively.
Each interval pressure is tested by closing well to recover and test each interval flow and pressure changing after driving a well to integrate Judge regimen condition, implementing water blockoff for the later stage provides foundation.Design and installation intelligent switch device in searching pipe column, in lower tubular column process In, intelligent switch device is opened, and oil jacket annular space is connected with oil pipe, it is ensured that construction safety;Intelligently opened during test pressure is recovered Close device to close, ensure that the pressure recovery value of test is effective;In flow rate test, intelligent switch device open, for each interval provide into Liquid passage, while flowmeter institute measurement of discharge is each laminated flow value adopted, the yield that diminishing method need to be used to calculate each section respectively; During lift pipe string, intelligent switch device is kept open, and reduces construction safety risk
Embodiment 2:
On the basis of embodiment 1, in the present embodiment, the horizontal segment of the oil pipe 13 is close to the end of first pressure meter 2 Mouth is connected with silk plug 1.
Lifting equipment 14 is connected with the vertical section of the oil pipe 13.
Lifting equipment 14 connects the structure inside the present apparatus, after proceeding by operation, injection and rises to pass through lifting The running of equipment 14.
Second pressure meter 6, second flowmeter 8, first flowmeter 4, first pressure meter 2, the 3rd pressure gauge 10 and the 3rd stream It is screwed connection between gauge 12 and oil pipe.
Screwed connection ensures that each flowmeter is integrated with oil pipe, ensure that the stoichiometric number that each flowmeter is not omitted Word.
The first pressure meter 2,6 and the 3rd pressure gauge 10 of second pressure meter are JDYQ high-precision underground electronic pressure gauges.
The first flowmeter 4,8 and the 3rd flowmeter 12 of second flowmeter are electromagnetic flowmeter or underground float-type Meter.
During lower tubular column, three intelligent switch devices are opened, and oil jacket annular space is connected with oil pipe, it is ensured that construction safety; Intelligent switch device is closed during test pressure is recovered, and ensures that the pressure recovery value of test is effective;During lift pipe string, intelligence Derailing switch is kept open, and reduces construction safety risk.
Embodiment 3:
A kind of horizontal well fixed tubular column Multi-parameter Combined Tool is provided on the basis of above-mentioned two embodiment, in the present embodiment Quick groundwater prospecting method is tested, is concretely comprised the following steps:
1)Three intelligent switch devices i.e. the first intelligent switch device 3, the second intelligent switch device 7 and the 3rd are preset on ground first 11 on off state sequential of intelligent switch device, and complete self-test operations on ground, it is ensured that three intelligent switch devices can normally play open and close Close;
2)By test string G.I.H, treat the first packer 5 and the second packer 9 times to precalculated position set by Each interval card is opened, and closing well carries out pressure recovery test 5 days after completion, tests each card envelope section pressure recovery situation;
3)After pressure recovery test, huge discharge discharge opeing, continuous production 5 days, and on ground are carried out by lifting equipment 14 Face metering production liquid and aqueous situation;
4)Test string is played out after being completed, each card envelope section flow and pressure value are played back, according to flow and pressure change Situation judges water exit interval, each card envelope section flow of contrast and pressure, and wherein flow and pressure value changes greatly compared with other card envelope sections For main water exit interval.
This embodiment illustrated the present invention.This example is by taking 3 sections of horizontal production wells flatly as an example, carrying out horizontal well The quick searching pipe column of fixed tubular column Multi-parameter Combined Tool test sequentially consists of silk plug 1, the intelligence of first pressure meter 2, first is opened Close device 3, first flowmeter 4, the first packer 5, second pressure meter 6, the second intelligent switch device 7, second flowmeter 8, the second envelope Every device 9, the 3rd pressure gauge 10, the 3rd intelligent switch device 11, the 3rd flowmeter 12, oil pipe 13, lifting equipment 14 etc., the present invention makes Pressure is calculated as JDYQ high-precision underground electronic pressure gauges, and flowmeter uses electromagnetic flowmeter or underground suspended body flowmeter.
Specific implementation step is as follows:
1st, intelligent switch device on off state sequential is preset on ground first, and self-test operations are completed on ground, it is ensured that switch Device can normally be opened, closed.
2nd, by test string G.I.H, treat to be set to precalculated position under packer and open each interval card, after completion Closing well carries out pressure recovery test 5 days, tests each card envelope section pressure recovery situation.
3rd, after pressure recovery test, lower pump or huge discharge discharge opeing is carried out with other lifting equipments, continuous production 5 days, And produce liquid and aqueous situation in ground metering.
4th, test string is played out after being completed, each card envelope section flow and pressure value are played back, according to flow and pressure change Information summary judges water exit interval.
By oil pipe mode of movement by test equipment(Flowmeter, pressure gauge etc.)Underground is transported to, and is coordinated under packer Enter horizontal well horizontal segment.According to fractured horizontal well transformation hop count and water breakthrough feature, supporting varying number packer, horizontal segment is sealed Different pay intervals are divided into, each pay interval, which corresponds to, places flowmeter, pressure gauge etc..After test string G.I.H, close Well carries out each interval pressure and recovers test, and after treating pressure recovery test, opening well and making production, is carried out using huge discharge swabbing parameter Discharge opeing is produced, production after a certain period of time, acts the Parameters variation such as tubing string, playback manometer pressure, temperature, flow, passes through segmentation Test parameter, comprehensive descision water exit interval, well water detection accuracy rate of improving the standard and the water detection efficiency such as each card envelope section pressure, flow.
After the quick water detection technique of fixed tubular column multi-parameters test and method, it can effectively shorten the water detection cycle, raising is looked for Water efficiency, judges main inflow direction from pressure and changes in flow rate to analyze, in addition, the construction technology is convenient, operation is simple, energy Effectively reduce testing cost.

Claims (6)

1. a kind of horizontal well fixed tubular column Multi-parameter Combined Tool tests quick groundwater prospecting method, it is characterised in that:The groundwater prospecting method uses Device include oil pipe(13), the oil pipe(13)Horizontal segment uniform intervals be provided with the first packer(5), the second packer (9), the first packer(5), the second packer(9)Between be provided with the second intelligent switch device(7), the second intelligent switch device(7) Both ends be respectively arranged with second pressure meter(6)And second flowmeter(8);First packer(5)The other end be provided with first Intelligent switch device(3), the first intelligent switch device(3)Both ends are respectively arranged with first flowmeter(4)With first pressure meter(2);The Two packers(9)The other end be provided with the 3rd intelligent switch device(11), the 3rd intelligent switch device(11)Both ends set respectively There is the 3rd pressure gauge(10)With the 3rd flowmeter(12);
The groundwater prospecting method concretely comprises the following steps:
1)Three intelligent switch devices i.e. the first intelligent switch device is preset on ground first(3), the second intelligent switch device(7)With the 3rd Intelligent switch device(11)On off state sequential, and complete self-test operations on ground, it is ensured that three intelligent switch devices can open normally, Close;
2)By test string G.I.H, the first packer is treated(5)With the second packer(9)Arrive down precalculated position set by Each interval card is opened, and closing well carries out pressure recovery test 5 days after completion, tests each card envelope section pressure recovery situation;
3)After pressure recovery test, pass through lifting equipment(14)Progress huge discharge discharge opeing, continuous production 5 days, and on ground Metering production liquid and aqueous situation;
4)Test string is played out after being completed, each card envelope section flow and pressure value are played back, according to flow and pressure changing Judge water exit interval, contrast each card envelope section flow and pressure, wherein flow and pressure value block compared with other seals based on section change greatly Want water exit interval.
2. a kind of horizontal well fixed tubular column Multi-parameter Combined Tool according to claim 1 tests quick groundwater prospecting method, its feature It is:The oil pipe(13)Horizontal segment close to first pressure meter(2)Port be connected with silk plug(1).
3. a kind of horizontal well fixed tubular column Multi-parameter Combined Tool according to claim 1 tests quick groundwater prospecting method, its feature It is:The oil pipe(13)Vertical section on be connected with lifting equipment(14).
4. a kind of horizontal well fixed tubular column Multi-parameter Combined Tool according to claim 1 tests quick groundwater prospecting method, its feature It is:The second pressure meter(6), second flowmeter(8), first flowmeter(4), first pressure meter(2), the 3rd pressure gauge (10)With the 3rd flowmeter(12)It is screwed connection between oil pipe.
5. a kind of horizontal well fixed tubular column Multi-parameter Combined Tool according to claim 1 tests quick groundwater prospecting method, its feature It is:The first pressure meter(2), second pressure meter(6)With the 3rd pressure gauge(10)For JDYQ high-precision underground electron pressures Meter.
6. a kind of horizontal well fixed tubular column Multi-parameter Combined Tool according to claim 1 tests quick groundwater prospecting method, its feature It is:The first flowmeter(4), second flowmeter(8)With the 3rd flowmeter(12)It is electromagnetic flowmeter or underground float Flowmeter.
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Families Citing this family (5)

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Publication number Priority date Publication date Assignee Title
CN105569635B (en) * 2015-12-31 2018-12-28 中国石油天然气股份有限公司 A kind of horizontal well produced fluid cross section technical matters tubing string and test method
CN105888653B (en) * 2016-05-06 2019-10-22 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 A kind of multistage pressure break horizontal well tracer groundwater prospecting method
CN108979618A (en) * 2017-06-02 2018-12-11 中石化石油工程技术服务有限公司 A kind of complete well multi-point test method of horizontal well sieve tube
GB2566953B (en) * 2017-09-27 2021-01-20 Swellfix Uk Ltd Method and apparatus for controlling downhole water production
CN108397186A (en) * 2018-01-31 2018-08-14 中国石油天然气股份有限公司 A kind of horizontal well temperature excitement water detection device and method

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU713643B2 (en) * 1997-05-06 1999-12-09 Baker Hughes Incorporated Flow control apparatus and methods
CN2538961Y (en) * 2002-02-07 2003-03-05 王晓斌 Multi-parameter dynamic layered tester
CN101250987A (en) * 2008-03-27 2008-08-27 中国石油化工股份有限公司 Method for testing and dislodging oil well intelligent delamination
CN101403293B (en) * 2008-11-11 2012-06-06 大庆油田有限责任公司 Column type down-hole shut-in well delamination pressure test technique suitable for oil well
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
CN203394449U (en) * 2013-06-18 2014-01-15 中国石油天然气股份有限公司 Water-finding tubular column for monitoring level-section production flow and water content at vertical well section of horizontal well
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
CN203394362U (en) * 2013-06-21 2014-01-15 中国石油天然气股份有限公司 Cased hole completion multi-section pressing crack horizontal well mechanical water finding pipe column
CN204457756U (en) * 2014-12-17 2015-07-08 中国石油天然气股份有限公司 A kind of horizontal well in segments pressure and pressure fall-off test tubing string
CN205025412U (en) * 2015-08-31 2016-02-10 中国石油天然气股份有限公司 Many parameter combination of motionless tubular column of horizontal well test quick water detection tubular column

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