Formation dip geo-steering method

A method for drilling a formation penetrated by multiple wells, the method comprising:

• a) computing by a processor, a formation dip angle in degrees;
• b) obtaining with the processor actual survey data using a logging while drilling tool while drilling in a well;
• c) transmitting with the processor the actual survey data to a third party collection and formatting tool;
• d) formatting with the third party collection and formatting tool the actual survey data into WITS, WITS, ML, or LAS, and transmitting the actual survey data in WITS, WITSML, or LAS formats to the processor;
• e) computing with the processor a stratigraphic target formation window using the WITS, WITSML, or LAS formatted actual survey data;
• f) computing a target line with the processor that generates a top and a bottom of the formation utilizing an instantaneous formation dip angle (ifdip) calculated by the processor using the WITS, WITSML, or LAS formatted actual survey data correlated to offset well data from an offset well;
• g) calculating a target window with the processor from actual drilling data to geosteer a drill bit and correct a well path to stay within the stratigraphic target formation window;
• h) identifying a target deviation with the processor from the WITS, WITSML, or LAS formatted actual drilling data by overlaying with the processor the target window over the stratigraphic target formation window;
• i) generating a target deviation flag when the overlaying results differs within +/−2TVD to +/−4TVD above or below the stratigraphic target formation window or a user inputted target deviation flag parameter;
• and
• j) automatically adjusting the drill bit based on the target deviation.