Engineer's Corner

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To provide valuable information to our customers and prospective customers, Data Retrieval Corporation continues its newsletter series for the petroleum industry's working engineer. Our newsletters cover many topics ranging through general pressure transient testing information (Well Testing 101) to Data Retrieval Corporation's proprietary wellhead to bottomhole pressure conversion techniques

Engineer's Corner Pages: 1 2

Engineer's Corner Archive

Communication Monitoring During Frac Operations – Downhole vs Surface

With the large number of wells being fractured in the tight sand and shale formations, it has become an ...

Properly Conducting a DFIT

For the past several years, the majority of tests performed by DRC are pre-frac injection fall-off tests aka ...

Understanding Wellbore Cooling

DRC has been conducting pressure transient tests from the surface for 27 years. Over this time we have ...

DFIT Testing: Downhole vs Surface Data (Part 2)

An article in DRC’s Winter 2011 Newsletter discussed the use of SPIDR captured surface data as a perfect ...

SPIDR Data Storage Format and Output Options

New users of the SPIDR system are frequently confused or unaware of the data format options that are ...

Testing Oil Producers from Surface Measurements

The most common misconception that exists about the SPIDR Well Testing System is that it is limited to only ...

Remote Interference Monitoring of Offset Producers during Stimulation Operations

The drilling of horizontal wells is increasing rapidly throughout the oil and gas industry due to enhanced ...

Wellbore Storage

Wellbore Storage is not a factor on deep, dry gas, low perm well when testing from the surface! Wellbore ...

SPIDR used in Steam Injection Applications

Steam Injection is a tertiary recovery method and the application is typically reserved for shallower, heavy ...

Injection Fall-off (DFIT): Accurate Pressure AND Rate Measurement

DRC’s SPIDR system has been recognized over the years for its ability to record accurate, temperature ...

DFIT Analysis When On Vacuum At The Surface

A DFIT is an optimal type of test to perform using surface acquired pressure data. This is because the ...

Data Requirements for DFIT Testing

The bulk of the data recorded by SPIDRs over the years has been for Pressure Transient Analysis (PTA); here ...

The 4 Keys to Pressure Transient Testing from Surface (Part 4)

This is the 4th and final installment of a 4 part series outlining the 4 keys of pressure transient testing ...

Candidate Selection for Surface Testing

Over the past 26 years, DRC has developed the SPIDR well testing system into the preeminent method of testing ...

DFIT Testing: Downhole vs Surface Data

Data Retrieval Corp. has built its reputation over the past 25 years as the best surface well testing company ...

The 4 Keys to Pressure Transient Testing from Surface (Part 3)

This is the 3nd installment of a 4 part series outlining the 4 keys of pressure transient testing from ...

Mechanical Integrity Testing with the SPIDR

Mechanical Integrity Tests (MIT) on producing wells and disposal wells are required by both state and federal ...

Water / Gas Injector Testing from Surface Measurements

Measuring surface injection pressures and rates are routine applications for DRC. Water injector wells ...

The 4 Key Elements in Pressure Transient Testing using Surface Measurements Part 2

This is the 2nd installment of a 4 part series outlining the 4 keys of pressure transient testing from ...

Pre-frac Diagnostic Injection Test Analysis

Over the past two years at Data Retrieval Corp. we have seen a marked increase in the number of Diagnostic ...

The 4 key elements in Pressure Transient Testing using Surface Measurements

This is the first installment of a 4 part series outlining the 4 keys of pressure transient testing from ...

Communication Testing For Observation Well Having a Liquid Column

Figure one is a plot of the pressure response in an observation well having both a downhole gauge and a ...

Input Sensitivity on DFIT Analysis

The results of any computer model are only as good as the inputs. This is true in any professional ...

Interference Testing: The Low Cost, No Risk Approach

Interference testing, also known as a communication test, is a multiple well test that is used by operators ...

Gauge Selection for Pressure Transient Testing

Strain Gauge vs. Capacitance vs. Quartz When conducting transient tests (PTA) on high permeability reservoirs ...

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Communication Monitoring During Frac Operations – Downhole vs Surface
With the large number of wells being fractured in the tight sand and shale ...
Properly Conducting a DFIT
For the past several years, the majority of tests performed by DRC are ...
Renting vs Purchasing a Surface Pressure Gauge
The SPIDR gauge was developed in the mid 80's and has since been ...

I have been pleased to be associated with Dr. Nathan Waldman before there was a concept of a SPIDR. ...

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DRC - Data Retrieval Corporation | 13231 Champion Forest Drive, Suite 401 | Houston, TX 77069 | Phone (281) 444-5398, Fax (281) 444-5397