CN106651611B - It is a kind of to survey entry data to the corrected method of outlet data using well logging gas - Google Patents
It is a kind of to survey entry data to the corrected method of outlet data using well logging gas Download PDFInfo
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Abstract
Entry data is surveyed to the corrected method of outlet data using well logging gas the invention discloses a kind of, when not opening booster pump, based on entering implication measured data entry time by well logging, the corresponding depth of inlet gas of the repulsion in shaft bottom, it is synchronous with outlet data to realize that gas surveys entry data, and then completes to enter the correction that implication measured data carries out outlet data using well logging.Entry data is surveyed to the corrected method of outlet data using well logging gas the invention also discloses a kind of, when opening booster pump, the inlet gas data for calculating separately the inlet gas data for acting on shaft bottom and acting on riser pipe, then two above is entered into implication measured data and calculates a weighted value by corresponding drilling fluid displacement, this weighted value is exactly entry data synchronous with gas survey outlet data in this case, it is finally reference with depth, subtracting the gas survey entry data after synchronizing accordingly with gas survey outlet data realizes correction of the entry data to outlet data.
Description
Technical field
The present invention relates to oil-gas exploration and development industry gas detection logging service fields, and in particular to it is a kind of using well logging gas survey into
Mouth data are to the corrected method of outlet data.
Background technique
In oil drilling industry, gas detection logging is a kind of common logging means, it is therefore an objective to by checking in drilling fluid
Gas content is counter to push away the air content bored and meet reservoir, so in reservoir pore space fluid properties and hydrocarbonaceous saturation evaluate.One
As, gas detection logging measurement is the air content returned out in drilling fluid from shaft bottom, and using it as formation gas concentration, is applied in oil
Gas-bearing formation explain and evaluation in, but in fact, the gas data measured with this condition and the true air content for being not all stratum,
It includes two parts: formation gas and secondary cycle gas.To realize that reservoir fine neutralizing is released and evaluated, Well Log Interpretation is improved
Coincidence rate rejects the influence of secondary cycle gas, and the reduction true air content in stratum is gas detection logging only way.With the new skill of well logging
The development of art, using two sets of degassing systems, detection is pumped into drilling fluid in pit shaft and returns out wellhead drilling fluid air content respectively, then
Extensive approval has been obtained to the corrected thinking of outlet data with entry data.But due to outlet data and entry data
Nonsynchronous in time, thus correct get up it is difficult, this be also the development of domestic mud logging in this regard be in stagnate
One major reason of not preceding state.
Summary of the invention
The present invention designed and developed it is a kind of survey entry data to the corrected method of outlet data using well logging gas, invention
Purpose is to realize that entry data is synchronous with outlet data, is corrected by entry data to outlet data.
Technical solution provided by the invention are as follows:
It is a kind of to survey entry data to the corrected method of outlet data using well logging gas, include the following steps:
Step 1: acquisition logging data generates source file；
Step 2: being searched in the source file and to meet condition Tot Dep (i)=Bit Dep (i) data point being
Point searches the record data for meeting formula Vs+Vpi- ∑ Ts*FLWpmps=0；
In formula, Vs for drilling fluid the internal volume through surface line, Vpi be well head to bottomhole internal volume, when Ts is
Between intra-record slack byte time in sequence data source file, FLWpmps is the main pump drilling fluid row in i-th of record or depth serial number
Amount, ∑ FLWpmps are drilling fluid with gas from pipeline is pumped into the accumulative discharge capacity of drilling fluid for arriving at shaft bottom, and i is record or depth sequence
Number, it and is integer greater than 0, Tot Dep (i) is total well depth in i-th of record or depth serial number, and Bit Dep (i) is the
Bit location depth in i record or depth serial number；
Step 3: extracting the inlet gas concentration of record point in the record data, and entrance concentration data are made
Inlet gas concentration for Tot Dep (i-2) depth is stored, and intermediate file is generated；
In formula, i-2 is that up two records, Tot Dep (i-2) are for i-th of record or depth serial number in data sequence
Total well depth in i-2 record or depth serial number；
Step 4: carrying out rounding processing to the depth data in the intermediate file, the final of inlet gas concentration is obtained
File；
Step 5: being obtained by carrying out subtracting each other processing by the data of same depth in the source file and the definitive document
Correction of a final proof file out.
Preferably, rounding processing is carried out to the depth data in the intermediate file, obtains inlet gas concentration most
Whole file, includes the following steps:
Step a, it determines the depth data in the intermediate file, it is dense to record inlet gas corresponding to the depth data
Degree；
Step b, inlet gas concentration corresponding to the determination integer depth data adjacent with the depth data；
Step c, maximum value is determined in the inlet gas concentration in the step a and the step b；
Step d, with the depth data that the smallest positive integral depth for being greater than the depth data is after being rounded, with the maximum value
For the inlet gas concentration of the depth data after the rounding, the definitive document is generated.
It is a kind of to survey entry data to the corrected method of outlet data using well logging gas, include the following steps:
Step 1: opening booster pump, acquisition logging data generates file destination, depth sequence source file and time series
Source file；
Step 2: being searched in the time series source file, to meet condition Tot Dep (i)=Bit Dep (i) number
Strong point is starting point, searches the record data of formula Vs+Vpi- ∑ Ts*FLWpmps=0, extracts the data in the record data
The inlet gas concentration of point, and carried out the inlet gas concentration as the inlet gas concentration of Tot Dep (i-2) depth
Storage generates the first intermediate file, carries out rounding processing to the depth data in first intermediate file, obtain inlet gas
Second intermediate file of concentration；
In formula, Vs for drilling fluid the internal volume through surface line, Vpi be well head to bottomhole internal volume, when Ts is
Between intra-record slack byte time in sequence source file, FLWpmps is the main pump drilling fluid displacement in i-th of record or depth serial number,
∑ FLWpmps be drilling fluid with gas from be pumped into pipeline to arrive at shaft bottom drilling fluid add up discharge capacity, i be record or depth serial number,
It and is the integer greater than 0, Tot Dep (i) is total well depth in i-th of record or depth serial number, and Bit Dep (i) is i-th
Bit location depth in record or depth serial number, i-2 are that i-th of record or depth serial number are up remembered for two in data sequence
Record, Tot Dep (i-2) are total well depth in the i-th -2 records or depth serial number；
Step 3: being searched in the depth sequence source file, with Tot Dep (i) for depth reference point, in the time
Finding in sequence source file has identical Cn main data with Tot Dep (i) depth in the depth sequence source file, and
Corresponding Tot Dep (i) at this time is recorded, it is as a reference point with Tot Dep (i) in the time series source file, it is looked into
The record data for meeting formula Vr-Vpr- ∑ Pumpsm*Km*Ts=0 are looked for, corresponding Tot Dep is extracted in the record data
(i) the inlet gas concentration put is stored, and generates the third intermediate file of inlet gas concentration；
In formula, Vr is riser pipe internal volume, and Vpr is drilling tool volume in riser pipe, and Ts is in time series source file
The intra-record slack byte time, Pumpsm is No. m pump pump speed, and Km is that the every punching of No. m pump pumps out drilling fluid volume, and Tot Dep (i) is i-th
Total well depth in a record or depth serial number, Cn main are well logging exit gas parameter, and n is the carbon atom number in gas parameter,
Respectively 1 to 8 integer；
Step 4: calculating weighting according to the inlet gas concentration in second intermediate file and third intermediate file
It is worth true inlet gas concentration, generates definitive document；
Step 5: by carrying out subtracting each other processing by the data of same depth in the file destination and the definitive document,
Obtain correction of a final proof file.
Preferably, in the step 2, rounding processing is carried out to the depth data in first intermediate file, obtained
Second intermediate file of Inlet and outlet gas bulk concentration, includes the following steps:
Step a, it determines the depth data in first intermediate file, records and enter implication corresponding to the depth data
Bulk concentration；
Step b, inlet gas concentration corresponding to the determination integer depth data adjacent with the depth data；
Step c, maximum value is determined in the inlet gas concentration in the step a and the step b；
Step d, with the depth data that the smallest positive integral depth for being greater than the depth data is after being rounded, with the maximum value
For the inlet gas concentration of the depth data after the rounding, second intermediate file is generated.
Preferably, in the step 4, weighted value passes through formulaIt calculates
Out；In formula, i is record or depth serial number, and FLWpmps is the main pump drilling fluid displacement in i-th of record or depth serial number,
To enter implication measured data accordingly in the second intermediate file in i-th of record or depth serial number, CnIN D21 is CnIN C22
Enter implication measured data in third intermediate file in i-th of record or depth serial number accordingly, ∑ Pumpm*Km is i-th of record
Or effective pumpage summation in depth serial number.
Preferably, secondary correction is carried out to the weighted value, CnIN (i) '=η CnIN (i), in formula, η is correction system
Number,FLWpmps is
Main pump drilling fluid displacement in i record or depth serial number, ∑ Pumpm*Km are effective pump in i-th of record or depth serial number
Discharge capacity summation, T are environment temperature, and RH% is ambient humidity.
The present invention is possessed compared with prior art the utility model has the advantages that this patent has data as base using logging data library
Plinth booster pump and opens two kinds of job states of booster pump for not opening in drillng operation, give accordingly using well logging gas survey into
Implication volume data effectively eliminates secondary cycle gas to the shadow of formation gas to the corrected new method of exit gas data
Ring, substantially increase the quality of gas measured data, in oil-gas exploration and development operation using well logging Gas logging data quickly identify with
Precisely evaluation oil-gas Layer provides guarantee.
Detailed description of the invention
Fig. 1 is to survey entry data to the corrected side of outlet data using well logging gas under conditions of not opening booster pump
Method flow chart.
Fig. 2 is to survey entry data to the corrected method of outlet data using well logging gas under conditions of opening booster pump
Flow chart.
Specific embodiment
The present invention is described in further detail below, to enable those skilled in the art's refer to the instruction text being capable of evidence
To implement.
In drilling operation course, due to the needs of engineering safety, there are two kinds of forms for the circulating path of drilling fluid: not opening
Booster pump and booster pump is opened, and is realized under both of these case into the implication measured data method synchronous with measured data of working off one's feeling vent one's spleen phase not to the utmost
Together, thus, different implementation technical solutions has been respectively adopted in this patent.
As shown in Figure 1, surveying entry data pair using well logging gas the present invention provides a kind of under conditions of not opening booster pump
The corrected method of outlet data, comprising:
S110, carry out data acquisition, based on entering implication measured data entry time by well logging, using in logging data library
There are drilling tool dimension data, drilling fluid displacement data, generates source file；
The corresponding depth of the inlet gas of S120, repulsion in shaft bottom, realization gas survey entry data and outlet data
It is synchronous；
S130, synchronous rear entrance gas data arrange；
S140, it completes to enter the correction that implication measured data carries out outlet data using well logging；
Above-mentioned steps are further detailed, are specifically comprised the following steps:
Step 1: acquisition logging data generates file destination A1 (as shown in table 1), determines source file B1 (as shown in table 2)；
Step 2: successively being searched from first record data in source file B1, meeting condition Tot Dep (i)=Bit
Dep (i) data point, and using this data as starting point, it carries out lookup upwards and meets formula Vs+Vpi- ∑ Ts*FLWpmps=0's
Record data；
In formula, Vs for drilling fluid the internal volume through surface line, Vpi be well head to bottomhole internal volume, when Ts is
Between intra-record slack byte time in sequence data source file, ∑ FLWpmps drilling fluid with gas is from pipeline is pumped into the brill for arriving at shaft bottom
Feed liquor adds up discharge capacity, and i indicates i-th of record or depth serial number in data sequence, and is the integer greater than 0, Tot Dep (i)
For total well depth in i-th of record or depth serial number, Bit Dep (i) is that the bit location in i-th of record or depth serial number is deep
Degree；
Step 3: extracting the record point inlet gas Cn IN data in the recorded data, and using the data as Tot
The inlet gas Cn IN of the depth point Dep (i-2) be stored in intermediate green in file C1 (as shown in table 3) as its first
A record；
In formula, Cn IN be well logging inlet gas parameter, n be gas parameter in carbon atom number, respectively 1 to 8 it is whole
Number, i-2 be data sequence in i-th record or depth serial number up two record, Tot Dep (i-2) be the i-th -2 record or
Total well depth in depth serial number；
Step 4: and so on, the record for the condition that meets successively is searched, until data file ends up；
Step 5: being arranged in intermediate file C1 with Tot Dep as reference, rounding processing is carried out to Tot Dep, is generated most
Whole file D1 (as shown in table 4)；
In formula, Tot Dep is total well depth；
Step 6: being corrected using definitive document D1 to gas data in file destination A1, correction of a final proof file is generated
Af (as shown in table 5), principle is: being reference with Tot Dep parameter, to the record with same depth Tot Dep, with Tot
Dep is the depth data of Af, and Cn cor=Cn main-Cn IN is corresponding gas data；
In formula, Tot Dep is total well depth, and Cn main is well logging exit gas parameter, and Cn IN is well logging inlet gas ginseng
Number, n are the carbon atom number in gas parameter, respectively 1 to 8 integer.
1 file destination A1 of table
2 source file B1 of table
3 intermediate file C1 of table
4 definitive document D1 of table
5 correction of a final proof file Af of table
In another embodiment, in step 5, rounding processing is carried out to the Tot Dep in intermediate file C1, is obtained
The definitive document D1 of inlet gas concentration, includes the following steps:
Step a, the depth data in intermediate file C1 is determined, inlet gas concentration corresponding to registered depth data；
Step b, inlet gas concentration corresponding to the determination integer depth data adjacent with depth data；
Step c, maximum value is determined in the inlet gas concentration in step a and step b；
It step d, is after being rounded with maximum value with the depth data that the smallest positive integral depth for being greater than depth data is after being rounded
Depth data inlet gas concentration, generate definitive document D1.
As shown in Fig. 2, surveying entry data to out using well logging gas the present invention provides a kind of under conditions of opening booster pump
The mouth corrected method of data, when due to opening booster pump operation, gas survey outlet data is subject to drilling pump and is pumped into shaft bottom entrance
Gas (referred to as " inlet gas for acting on shaft bottom ") and booster pump are pumped into riser pipe inlet gas and (referred to as " act on water proof
The inlet gas of conduit ") two parts pollution, thus it is more complicated to implement technical solution, comprising:
S210, carry out data acquisition, based on entering implication measured data entry time by well logging, using in logging data library
There are drilling tool dimension data, drilling fluid displacement data, generates source file；
S221, S222, the inlet gas data for acting on shaft bottom and the inlet gas for acting on riser pipe are calculated separately
Data, realization act on that shaft bottom inlet gas data are synchronous with depth and mud face at marine riser inlet gas data and depth
Synchronization；
S230, two above is entered to implication measured data by corresponding drilling fluid displacement one weighted value of calculating, this adds
Weight is exactly entry data synchronous with gas survey outlet data in this case；,
S240, with depth it is reference, using weighting treated inlet gas data, corresponding synchronization is subtracted to outlet data
Gas afterwards, which surveys entry data, realizes correction of the entry data to outlet data；
Above-mentioned steps are further detailed, are specifically comprised the following steps:
Step 1: opening booster pump, acquisition logging data generates file destination A2 (as shown in table 6), depth sequence source document
Part Bd (as shown in table 7) and time series source file Bt (as shown in table 8)；
Step 2: establishing the relationship for being pumped into gas data and drilling depth in the drilling fluid of shaft bottom, that is, calculates and act on shaft bottom
Inlet gas data, successively searched in source file Bt from first record data, meet condition Tot Dep (i)=Bit
Dep (i) data point, and using this data as starting point, it carries out lookup upwards and meets formula Vs+Vpi- ∑ Ts*FLWpmps=0's
Record data, extract the inlet gas concentration of the record point in the record data, and using the entrance concentration data as
The inlet gas concentration of Tot Dep (i-2) depth, which be stored in, generates the first intermediate file C21 (as shown in table 9), to first
Depth data in intermediate file C21 carries out rounding processing, obtains the second intermediate file C22 (such as table 10 of inlet gas concentration
It is shown)；
In formula, Vs for drilling fluid the internal volume through surface line, Vpi be well head to bottomhole internal volume, when Ts is
Between intra-record slack byte time in the first source file of sequence data, ∑ FLWpmps drilling fluid with gas is from pipeline is pumped into arriving at shaft bottom
Drill-in fluid add up discharge capacity, i indicates i-th of record or depth serial number in data sequence, and is integer greater than 0, Tot Dep
It (i) is total well depth in i-th of record or depth serial number, Bit Dep (i) is the drill bit position in i-th of record or depth serial number
Depth is set, i-2 is that up two records, Tot Dep (i-2) are the i-th -2 notes for i-th of record or depth serial number in data sequence
Total well depth in record or depth serial number；
Step 3: establishing the relationship for being pumped into gas measured data and drilling depth in the drilling fluid of mud face from annular space, i.e. calculating acts on
In the inlet gas data of riser pipe, in source file Bd, successively searched since first record data, with Tot Dep
It (i) is depth reference point, finding in source file Bt has identical Cn main data with Tot Dep (i) depth in source file Bd
Record Tot Dep (i) (finding " the returning out time point " of corresponding depth), in source file Bt, using Tot Dep (i) as
Reference point, the progress record data that lookup meets formula Vr-Vpr- ∑ Pumpsm*Km*Ts=0 upwards (correspond to time process
The record point in mud face), and therefrom extract slush pump parameter and Cn IN data as depth reference point Tot Dep (i) data into
Row storage, generates third intermediate file D21 (as shown in table 11)；
In formula, Vr is riser pipe internal volume, and Vpr is drilling tool volume in riser pipe, and Ts is time series data source document
Intra-record slack byte time in part Bt, Pumpsm are No. m pump pump speed, and Km is that the every punching of No. m pump pumps out drilling fluid volume, Tot Dep (i)
For total well depth in i-th of record or depth serial number, Cn main is well logging exit gas parameter, and Cn IN is well logging inlet gas
Parameter, n be gas parameter in carbon atom number, respectively 1 to 8 integer,；
Step 4: and so on, the record for the condition that meets successively is searched, until data file ends up；
Step 5: according to the record data in first file C21 and third intermediate file D21, by corresponding
Drilling fluid displacement, which calculates, to be acted on entering for shaft bottom and implication measured data and acts on the weighted value for entering implication measured data of riser pipe,
And then the true entry data that outlet data synchronous (i.e. using depth as sequence) is surveyed with gas is obtained, generate definitive document D22 (such as
Shown in table 12)；
Step 6: being obtained by carrying out subtracting each other processing by the data of same depth in file destination A2 and definitive document D22
Correction of a final proof file Af2 (as shown in table 13), principle is: being reference with Tot Dep parameter, to same depth Tot Dep
Record, be the depth data of Af2 with Tot Dep, Cn cor=Cn main-Cn IN is corresponding gas data；
In formula, Tot Dep is total well depth, and Cn main is well logging exit gas parameter, and Cn IN is well logging inlet gas ginseng
Number, n are the carbon atom number in gas parameter, respectively 1 to 8 integer.
6 file destination A2 of table
7 depth sequence source file Bd of table
8 time series source file Bt of table
9 intermediate file C21 of table
10 intermediate file C22 of table
11 intermediate file D21 of table
12 intermediate file D22 of table
13 correction of a final proof file Af2 of table
In another embodiment, in step 2, rounding processing is carried out to the depth data of the first intermediate file C21,
Show that the second intermediate file C22 of inlet gas concentration includes following steps:
Step a, the depth data of the first intermediate file C21, inlet gas concentration corresponding to registered depth data are determined；
Step b, inlet gas concentration corresponding to the determination integer depth data adjacent with depth data；
Step c, maximum value is determined in the inlet gas concentration in step a and step b；
Step d, with the depth data that the smallest positive integral depth for being greater than depth data is after being rounded, using the maximum value as institute
The inlet gas concentration of the depth data after being rounded is stated, the second intermediate file C22 is generated.
In another embodiment, in step 5, the gas of depth Tot Dep (i) surveys entry dataIt calculates
Out；In formula, i is record or depth serial number, and FLWpmps is the main pump drilling fluid displacement in i-th of record or depth serial number,
To enter implication measured data accordingly in the second intermediate file in i-th of record or depth serial number, CnIN D21 is CnIN C22
Enter implication measured data in third intermediate file in i-th of record or depth serial number accordingly, ∑ Pumpm*Km is i-th of record
Or effective pumpage summation in depth serial number, Tot Dep (i) are total well depth in i-th of record or depth serial number.
In another embodiment, by monitoring environment temperature and ambient humidity, according to experimental data, experience is total
Knot, in order to preferably be corrected to data, it is also necessary to entry data is surveyed to the gas of depth Tot Dep (i) and carries out secondary correction,
It obtaining gas and surveys entry data as CnIN (i) '=η CnIN (i), in formula, η is correction coefficient,FLWpmpsRemember for i-th
Main pump drilling fluid displacement in record or depth serial number, ∑ Pumpm*Km are effective pumpage in i-th of record or depth serial number
Summation, T are environment temperature, and RH% is ambient humidity, and Tot Dep (i) is total well depth in i-th of record or depth serial number.
Although the embodiments of the present invention have been disclosed as above, but its is not only in the description and the implementation listed
With it can be fully applied to various fields suitable for the present invention, for those skilled in the art, can be easily
Realize other modification, therefore without departing from the general concept defined in the claims and the equivalent scope, the present invention is simultaneously unlimited
In specific details and legend shown and described herein.
Claims (6)
1. a kind of survey entry data to the corrected method of outlet data using well logging gas, which is characterized in that including walking as follows
It is rapid:
Step 1: acquisition logging data generates source file；
Step 2: searched in the source file to meet condition Tot Dep (i)=Bit Dep (i) data point as starting point,
Search the record data for meeting formula Vs+Vpi- ∑ Ts*FLWpmps=0；
In formula, Vs for drilling fluid the internal volume through surface line, Vpi be well head arrive bottomhole internal volume, Ts be time sequence
Intra-record slack byte time in column data source file, FLWpmps are the main pump drilling fluid displacement in i-th of record or depth serial number,
∑ FLWpmps be drilling fluid with gas from be pumped into pipeline to arrive at shaft bottom drilling fluid add up discharge capacity, i be record or depth serial number,
It and is the integer greater than 0, Tot Dep (i) is total well depth in i-th of record or depth serial number, and Bit Dep (i) is i-th
Bit location depth in record or depth serial number；
Step 3: extracting the inlet gas concentration of record point in the record data, and using entrance concentration data as Tot
The inlet gas concentration of Dep (i-2) depth is stored, and intermediate file is generated；
In formula, i-2 is that up two records, Tot Dep (i-2) are the i-th -2 for i-th of record or depth serial number in data sequence
Total well depth in record or depth serial number；
Step 4: carrying out rounding processing to the depth data in the intermediate file, the definitive document of inlet gas concentration is obtained；
Step 5: being obtained most by carrying out subtracting each other processing by the data of same depth in the source file and the definitive document
Whole correction file.
2. surveying entry data to the corrected method of outlet data using well logging gas as described in claim 1, feature exists
In carrying out rounding processing to the depth data in the intermediate file, obtain the definitive document of inlet gas concentration, including as follows
Step:
Step a, it determines the depth data in the intermediate file, records inlet gas concentration corresponding to the depth data；
Step b, inlet gas concentration corresponding to the determination integer depth data adjacent with the depth data；
Step c, maximum value is determined in the inlet gas concentration in the step a and the step b；
Step d, with the depth data that the smallest positive integral depth for being greater than the depth data is after being rounded, using the maximum value as institute
The inlet gas concentration for stating the depth data after being rounded, generates the definitive document.
3. a kind of survey entry data to the corrected method of outlet data using well logging gas, which is characterized in that including walking as follows
It is rapid:
Step 1: opening booster pump, acquisition logging data generates file destination, depth sequence source file and time series source document
Part；
Step 2: being searched in the time series source file, to meet condition Tot Dep (i)=Bit Dep (i) data point
For starting point, the record data of formula Vs+Vpi- ∑ Ts*FLWpmps=0 are searched, extract the data point in the record data
Inlet gas concentration, and deposited the inlet gas concentration as the inlet gas concentration of Tot Dep (i-2) depth
Storage generates the first intermediate file, carries out rounding processing to the depth data in first intermediate file, show that inlet gas is dense
Second intermediate file of degree；
In formula, Vs for drilling fluid the internal volume through surface line, Vpi be well head arrive bottomhole internal volume, Ts be time sequence
Intra-record slack byte time in column source file, FLWpmps are the main pump drilling fluid displacement in i-th of record or depth serial number, Σ
FLWpmps be drilling fluid with gas from be pumped into pipeline to arrive at shaft bottom drilling fluid add up discharge capacity, i be record or depth serial number, and
And be the integer greater than 0, Tot Dep (i) is total well depth in i-th of record or depth serial number, and Bit Dep (i) is i-th of note
Bit location depth in record or depth serial number, i-2 are that i-th of record or depth serial number up record for two in data sequence,
Tot Dep (i-2) is total well depth in the i-th -2 records or depth serial number；
Step 3: being searched in the depth sequence source file, with Tot Dep (i) for depth reference point, in the time series
Finding in source file has identical Cn main data with Tot Dep (i) depth in the depth sequence source file, and records
Corresponding Tot Dep (i) at this time, it is as a reference point with Tot Dep (i) in the time series source file, search full
The record data of sufficient formula Vr-Vpr- Σ Pumpsm*Km*Ts=0 extract corresponding Tot Dep (i) point in the record data
Inlet gas concentration stored, generate inlet gas concentration third intermediate file；
In formula, Vr is riser pipe internal volume, and Vpr is drilling tool volume in riser pipe, and Ts is the note in time series source file
It records interval time, Pumpsm is No. m pump pump speed, and Km is that the every punching of No. m pump pumps out drilling fluid volume, and Tot Dep (i) is i-th of note
Total well depth in record or depth serial number, Cn main are well logging exit gas parameter, and n is the carbon atom number in gas parameter, respectively
For 1 to 8 integer；
Step 4: calculating weighted value according to the inlet gas concentration in second intermediate file and third intermediate file and obtaining
True inlet gas concentration out generates definitive document；
Step 5: being obtained by carrying out subtracting each other processing by the data of same depth in the file destination and the definitive document
Correction of a final proof file.
4. surveying entry data to the corrected method of outlet data using well logging gas as claimed in claim 3, feature exists
In in the step 2, carrying out rounding processing to the depth data in first intermediate file, obtain inlet gas concentration
Second intermediate file, include the following steps:
Step a, it determines the depth data in first intermediate file, it is dense to record inlet gas corresponding to the depth data
Degree；
Step b, inlet gas concentration corresponding to the determination integer depth data adjacent with the depth data；
Step c, maximum value is determined in the inlet gas concentration in the step a and the step b；
Step d, with the depth data that the smallest positive integral depth for being greater than the depth data is after being rounded, using the maximum value as institute
The inlet gas concentration of the depth data after being rounded is stated, second intermediate file is generated.
5. surveying entry data to the corrected method of outlet data using well logging gas as claimed in claim 4, feature exists
In in the step 4, weighted value passes through formulaIt calculates
Out；In formula, i is record or depth serial number, and FLWpmps is the main pump drilling fluid displacement in i-th of record or depth serial number,
To enter implication measured data accordingly in the second intermediate file in i-th of record or depth serial number, CnIN D21 is CnIN C22
Enter implication measured data in third intermediate file in i-th of record or depth serial number accordingly, ∑ Pumpm*Km is i-th of record
Or effective pumpage summation in depth serial number.
6. surveying entry data to the corrected method of outlet data using well logging gas as claimed in claim 5, feature exists
In, secondary correction is carried out to the weighted value, CnIN (i) '=η CnIN (i), in formula, η is correction coefficient,FLWpmps is i-th
Main pump drilling fluid displacement in record or depth serial number, ∑ Pumpm*Km are effective pump row in i-th of record or depth serial number
Summation is measured, T is environment temperature, and RH% is ambient humidity.
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